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<blockquote type="cite"><b style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Stewart Holt</b><span
style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial; display: inline
!important; float: none;"><span></span></span><br style="color:
rgb(0, 0, 0); font-family: "Times New Roman";
font-size: medium; font-style: normal; font-variant-ligatures:
normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">
<i style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Tue Jul 5 18:53:27 PDT
2022</i>
<hr style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color:
initial;">
<pre style="white-space: pre-wrap; color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">This message is telling you that QGIS cannot find qgis_app.dll on any of
the paths of the PATH variable defined in the listed .env file.</pre>
</blockquote>
<br>
Hi Stewart,<br>
the error doesn't say that QGIS cannot "find" qgis_app.dll, but that
QGIS cannot "load" qgis_app.dll. This means that there is an issue
in qgis_app.dll or in one or more dll that qgis_app.dll depends on
or that one or more dll that qgis_app.dll depends on are missing in
the path defined in qgis-ltr-bin.env (if present).<br>
<br>
<br>
<blockquote type="cite"><b style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Jeff Sonnentag</b><span
style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial; display: inline
!important; float: none;"><span></span></span><br style="color:
rgb(0, 0, 0); font-family: "Times New Roman";
font-size: medium; font-style: normal; font-variant-ligatures:
normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">
<i style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Tue Jul 5 18:24:40 PDT
2022</i><span style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial; display: inline
!important; float: none;"></span>
<hr style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color:
initial;">
<pre style="white-space: pre-wrap; color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Well, burned by a QGIS installation again, and this time a LTR version late in the game.
</pre>
</blockquote>
<br>
The latest QGIS 3.22.8 and QGIS 3.26.0 OSGeo4W Standalone Installers
for Windows suffer of the "could not load qgis_app.dll" issue, on
some specific system, already reported multiple times e.g. in <a
class="moz-txt-link-freetext"
href="https://github.com/qgis/QGIS/issues/49148">https://github.com/qgis/QGIS/issues/49148</a>
and <a class="moz-txt-link-freetext" href="https://github.com/qgis/QGIS/issues/49159">https://github.com/qgis/QGIS/issues/49159</a>.<br>
<br>
Usually this issue is preceded by a crssync.exe error during the
installation procedure. Did this error also occur?<br>
<br>
In such systems, the issue is due to the tiledb.dll library which
was built with the AVX2 x86 instruction set extension. Such library
will not load if the CPU doesn't have the AVX2 x86 instruction set
extension.<br>
<br>
What is exactly your CPU?<br>
Does it support the AVX2 instruction set extension? If not, then
it's very likely the issue is due to tiledb.dll.<br>
<br>
Anyway the issue with the tiledb.dll library has been fixed in the
OSGeo4W repository. So, if your CPU doesn't support AVX2, then you
could install QGIS LTR (3.22.8) using the OSGeo4W Network Installer.<br>
<br>
If your CPU does support AVX2, but the qgis-ltr-bin.env file was not
correctly created during the installation procedure, then you could
find useful this comment
<a class="moz-txt-link-freetext" href="https://github.com/qgis/QGIS/issues/49148#issuecomment-1174459434">https://github.com/qgis/QGIS/issues/49148#issuecomment-1174459434</a><br>
<br>
<br>
<blockquote type="cite"><b style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Richard Duivenvoorde</b><span
style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial; display: inline
!important; float: none;"><span></span></span><br style="color:
rgb(0, 0, 0); font-family: "Times New Roman";
font-size: medium; font-style: normal; font-variant-ligatures:
normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">
<i style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Wed Jul 6 01:38:01 PDT
2022</i><span style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial; display: inline
!important; float: none;"></span>
<hr style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color:
initial;">
<pre style="white-space: pre-wrap; color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">With us it was a opencl.dll which is wrongly copied/not removed by Windows (see links in the post).</pre>
</blockquote>
<br>
Hi Richard,<br>
see also the previous response to Jeff Sonnentag.<br>
<br>
<br>
<br>
Best regards.<br>
<br>
Andrea Giudiceandrea<br>
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